Improvement in cow-milkers



E. A. HBWITT.

00W MILKERQ No. 111,932. Patented Feb. 21,1871

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ELISHA A. HEWITT, OF GROTON, CONNECTICUT.

Letters Patent No. 111,932, dated February 21, 1871.

IMPROVEMENT IN COW-MILKERSL.

The Schedule referred to in these Letters Patent `und making part of thecomo.

To all whom 'it may concern Be it known that I, ELrsHA A. Hnwrrr, ofGroton, of New London county, in the State of Connecticut, have inventedcertain new and useful Improvements in Cow-Milkers; and I do herebydeclare that -the following is a full and exact description thereof,

reference being had to the accompanying drawing making part oi' thisapplication.

Previous to my inventiona variety of appliances have been suggested andemployed for the purpose of drawing off the milk from the bag of thecow, most of which apparatus have been constructed so as to effect theextraction ofthe milk byzthe use of an airpump. Some of the machinesusedv are adapted to be used for milking simultaneously any number ofcows. f. In all ofthe machines that I know of there is consderableexpense' involved, and the necessary complication consequent to the useof a pumping or air,- exhausting system.

I propose to dispense with the airfexhausting sys-y tem, and allconsequent expense and complication of mechanism, and at the same timealiord a means for mechanically and automatically milking one or moredoive, which shall possess all the advantages of Asuccessful operationnowembodiegd 'in the best known but expensive and complex machines, andwhich shall require in its use little or -no manual labos; and to theseends Y My invention consists in the employment or aselies of'. flexibletubesor conduits, which converge into one main tube or conductor, andwhich'areA provided with metallic or other suitable teats, adapted to beinserted into the cows tents, and operating as hercin'after more fullyexplained.

Arid my invention further-consists in having the teab-pieces formed orprovidedvwith a projection which will'enterthe teat of the cow in suchmanner as. to elect the retention in the latter of the tent-piece, ashereinafter more fully explained.

.And myinvention further consistsin making the tubes AVwhich enterthe'cows teat variable in length;

so that they he adapted to different teats, as herein after fullyexplained. To enable those skilled in the art to. make and use myinvention, I will proceed 'tol more fully describe my improvedcow-milking"contrivance, referring Vby letters to the accompanyindrawing, in which- Fignrel is a view show ng theapplication of theapparatus to the teats of a cow.

a b c d are the teatpieces or Athe tubes, which are inserted within thecows teat. They are made of' metal or other suitably-rigid material, ofabout the form shown, and are attached to flexible tubes e f g h, whichconverge into a main conduit or tube, I, from which the milk isdischarged intoany desired receptacle.

Each of the teat-pieces d, 86e., is provided with a collar, It, whichserves as a stop, 'coming against the end ofthe oows teat when the tubeis inserted, to prevent the tube a from entering too far into; and

hurting thelteat oi' the cow; and just above the said collar k is formedor provided a sm'all protuberance or bulge, if, the object and eiectofwhich is to prevent Each of the tubes a'b c, Ste., ismade variableoradjustable as Ato length, as shown, -belng made inparts, something afterthe fashion of a telescope, so that it may be adjusted or made longer orshorter, to adapt it for use with cows having longer or shorter teats,or teats of different anatomical construction.

Each of the teatfpieces a b, &c., is formed with a conicah'closed, andsmooth end, so that itcan be readilyinserted into the cows teat withoutApain; and -just below the end arose-veral perforations or side holes l2, &c., through which the milk can freely dow to the interior of saidtubes, and thence out into the flexible conduits e f, sie. When theapparatus is to be used, the tubes or teat-pieces a b c rl are insertedin the cows tents, as illustrated at fig. 1, und the main conduit orleader I placed over the bucket or other receptacle, into which l themilk is to be drawn. The milk contained in the cows bag will flowthrough the inserted tubes a b, 85e., passing in at the side openings 12, &c.; thence through theexible tubes'c f g h into the main oonduit I,from whence it flows to the receptacle designed to catch and hold it.

It will be seen that with the teats a, 8vo., attached l to a' series offlexible tubes, ej; 8vo., converging into one main tube I, the milk fromall the teats of the cow, no matter' h ow the latter may hang, can beeasily gathered intoand discharged from a single tube, and thatthis'operatiou can continue -without difficulty while the cow is movingor slightly changes her position. All that it is necessary for theoperator todo and formation of the tent. I have, therefore, made each-tube so that itsv length muy be varied, ns shown and described` Whenthe tubes are insert-ed in the tents, l:'ll the milk, except the minuteqnzmtitywhich rests in the end of the teat below the orifices 1 2, 5w.,in the cows bag will run outrand the cow will. be quickly milked withoutany manuel labor, and it will he seen that no complication of workingmechanism or mechanical parts is embodied'in the apparatus employed.

Of 'course a. series of sets of tent-tubes may be coinbined at suitabledistances apart, with one mitin con'- dluit I, in such a, manner that :tnumber ot' cows may' be milked simultaneously, and `all the milkdischarged into one general receptacle.

And' it will be understood that the several features of my invention maybe carried-out by detail con- 1. 'lhc mrungementof the tent-pieceshaving thev stationary stop-collar and bulge, with the series offlexible tubes and main conduit, as und for the purposes set forth. v

v 2.` lnleombinutiun with the stationary stopnnd bulge,.the :uliustnbloorvzuiable tubes to enter the feet of ih'e'cow more or less,usfdescrbed.v

Inv testimony wbereofl hn've hereunto set my hand amdscal this 28th dayof September, 1870.-

ELisHA' A. HEWITT. [n e] Witnesses:

J. MOINTIRE, Homan SMITH.

